Home / 420,508.17-580,292.10-229,524.75

Finding the Fourth Proportional to 420,508.17, 580,292.10 and 229,524.75

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Solution

The fourth proportional to 420,508.17, 580,292.10 and 229,524.75 is: 316,739.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,508.17 : 580,292.10 = 229,524.75 : x
  2. Step 2: Convert to fraction form
    420,508.17/580,292.10 = 229,524.75/x
  3. Step 3: Cross multiply
    420,508.17x = 580,292.10 × 229,524.75
  4. Step 4: Simplify right side
    420,508.17x = 133,191,399,179.48
  5. Step 5: Solve for x
    x = 133,191,399,179.48/420,508.17
  6. Step 6: Final answer
    x = 316,739.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.